Am Donnerstag, 12. Mai 2011, um 12:59:37 schrieb Jay Starkman: > Suggestions for adding an Advanced section in the Table of Contents: > Thanks for your suggestions.
> ------ Existing ------ > Advanced tab > On this tab you can select a Compositing type (OpenGL or XRender) and > set some options for the selected type. > > ------ Proposed New ------ > Advanced tab > On this tab you can select a Compositing type (OpenGL or XRender) and > set some options for the selected type. > > XRender is slower than OpenGL. It only uses 2d acceleration but is much > more compatible and works with older graphics cards as well. Desktop > Cube Animation (General Settings) cannot be activated when using > XRender. > > OpenGL is the fastest solution as it uses your graphics card's 3d > acceleration for rendering. > These Options are not in 4.7 anymore. > OpenGL Options. > > Texture From Pixmap stores the texture directly in the graphics > card's memory, and is usually the fastest option. > > Shared Memory stores the textures in X's shared memory, which resides > in the system RAM and is usually much slower than the graphics card's > memory, especially when there is a secondary video card. However, > Shared Memory is always faster when you are working with an integrated > video card because, lacking its own memory, the integrated video chipset > uses shared memory. The graphic driver gives the system the illusion > that it isn't using shared memory, but real video memory, and this > illusion involves conversions that incur in additional performance > penalties. Exception: if you have an integrated video chipset WITH > MEMORY, "Shared Memory" will be slower. > > Fallback tries Texture from Pixmap first and Shared Memory if that does > not work. > > Enable Direct Rendering passes the commands directly to the graphics > card and bypasses the X server. This is much faster as it the commands > have to be copied less, but can be more instable and less compatible. > > VSync (vertical synchronization) ensures that the pictures are drawn in > sync to the vertical display updates. This can be more soothing to the > eyes, but is a little slower than just drawing the frames any time the > graphics card is ready to do so. > > > adapted from: > http://webcache.googleusercontent.com/search?q=cache:OOfV4PQ3DOIJ:linux-tip > ps.blogspot.com/2008/06/kde4-kwin-desktop-effects-howto.html+opengl+pixmap+ > vs+"shared+memory"&cd=10&hl=en&ct=clnk&gl=us&source=www.google.com > Do you have permission from the author to use this under FDGL >=1.2 in kde? -- Burkhard L?ck
